Zcash vs Bitcoin: what is different, and which to use?
Zcash started from Bitcoin's code and shares its 21 million cap and halvings, but adds optional shielded transactions that hide sender, receiver and amount. Bitcoin is the bigger, more liquid store of value with fully public transactions; Zcash is built for private payments.
Zcash was launched on 28 October 2016 from a fork of the Bitcoin Core code, and many of its rules deliberately mirror Bitcoin's. The big difference is privacy: every Bitcoin transaction is public, while Zcash lets you keep transactions private with shielded addresses.
Zcash vs Bitcoin at a glance
| Zcash (ZEC) | Bitcoin (BTC) | |
|---|---|---|
| Launched | 28 Oct 2016 | 3 Jan 2009 |
| Supply cap | 21 million | 21 million |
| Privacy | Optional shielded transactions (zero-knowledge proofs); transparent addresses also exist | All transactions and balances public |
| Block time | 75 seconds (25 seconds planned with NU7, around 5 Nov 2026) | About 10 minutes |
| Last halving | 23 Nov 2024: 3.125 to 1.5625 ZEC per block | 20 Apr 2024: 6.25 to 3.125 BTC per block |
| Next halving | Around late Nov 2028 (block 4,406,400 under pre-NU7 rules) | Expected in 2028 (block 1,050,000) |
| Mining | Equihash (ASICs) | SHA-256 (ASICs) |
| Development funding | 20% of block reward until the 2028 halving (8% grants, 12% coinholder-controlled fund) | None from the protocol |
| Fees | Standard ZIP-317 fee: 0.0001 ZEC for a simple payment | Market-based; rises when blocks are full |
| US spot ETF | Grayscale ZCSH, since 25 Aug 2026 | Since Jan 2024 |
Privacy: the core difference
On Bitcoin, anyone can follow coins from address to address. Once one of your addresses is linked to your name, for example through an exchange withdrawal, your payment history and balance can often be traced. Bitcoin privacy tools such as CoinJoin exist but are add-ons, and some exchanges flag coins that used them.
Zcash has transparent t1 addresses that behave just like Bitcoin, and shielded addresses that hide the sender, receiver, amount and memo. Modern wallets give you a unified address (u1) that receives into the shielded Ironwood pool by default. About 4.89 million ZEC, roughly 28.9% of supply, was shielded on 10 September 2026 (KuCoin, Sep 2026). Learn more in shielded vs transparent and unified addresses.
Zcash also has viewing keys: you can give an accountant read-only access to a shielded wallet. That makes privacy compatible with tax reporting, which Bitcoin's all-or-nothing model does not offer.
Security and track record
Bitcoin is the oldest and most battle-tested chain, with by far the most hash power. Zcash's shielded cryptography is more complex, and that has had a cost: in 2026 a flaw in the Orchard pool circuit forced an emergency fix in June and a move to the new Ironwood pool on 28 July 2026. No evidence of exploitation was found, and the new design adds a public turnstile so total supply can be audited (see the Orchard vulnerability). The extra complexity is the price of privacy.
Supply and monetary policy
Both coins cap supply at 21 million and halve the block reward roughly every four years. Zcash's schedule runs on a different timetable because its blocks are faster; see Zcash supply and the live halving countdown. The main difference is funding: since 2020 part of each Zcash block reward has funded development. Under NU6.1 (24 Nov 2025) that is 8% for Zcash Community Grants and 12% for a fund controlled by coinholders, with miners getting 80%. Bitcoin pays everything to miners.
Speed, fees and usability
- Speed: a Zcash block arrives every 75 seconds, so confirmations are much faster than Bitcoin's 10 minutes. NU7, scheduled for around 5 November 2026, is planned to cut this to 25 seconds (a delay is possible). Try the confirmation time tool.
- Fees: Zcash wallets pay a predictable fee of 5,000 zatoshi per logical action, so a normal shielded payment costs 0.0001 ZEC. Bitcoin fees float with demand. See the fee calculator.
- Support: Bitcoin is accepted almost everywhere. Zcash is listed on major exchanges but restricted in some countries, and many multi-coin wallets support only transparent ZEC.
Liquidity and regulation
Bitcoin is far larger and more liquid, and almost every regulated exchange lists it. Zcash is treated as a privacy coin in some places: South Korea, Japan's registered exchanges, the UAE's regulators and India's FIU guidance restrict it, and the EU AML Regulation will bar licensed firms from handling anonymity-enhancing coins from 10 July 2027 (how that applies to ZEC is untested). See is Zcash legal?
Using both
Many people hold Bitcoin as savings and use Zcash for payments they want to keep private. Some wallets now bridge the two: Zodl's CrossPay lets you pay from shielded ZEC while the recipient gets BTC, using NEAR Intents. Swaps are taxable events in many countries, so keep records.
Which should you choose?
- Choose Bitcoin if you want the most liquid, most widely accepted and longest-running cryptocurrency, mainly as long-term savings, and you accept that your transactions are public.
- Choose Zcash if you want Bitcoin-style scarcity with the option of private payments, faster blocks and low, predictable fees, and you are willing to use a shielded wallet such as those in our best wallets guide.
Our verdict: they are not really rivals. Bitcoin is the safer pick for a first or only coin; Zcash is the better tool when financial privacy matters.
Frequently asked questions
Is Zcash a fork of Bitcoin?
Zcash's original node software was built from the Bitcoin Core codebase, and it keeps Bitcoin's 21 million cap and halvings. It is a separate blockchain launched on 28 October 2016 with added zero-knowledge privacy.
Is Zcash faster than Bitcoin?
Yes. Zcash blocks come every 75 seconds versus about 10 minutes for Bitcoin, and NU7 (planned around 5 November 2026) aims for 25-second blocks.
Are Zcash transactions always private?
No. Only shielded transactions are private. Transparent t1 transactions are as public as Bitcoin. Use a shielded-by-default wallet to stay private.
When is the next Zcash halving?
Around late November 2028, when the block subsidy halves. Under pre-NU7 rules that is block 4,406,400 and a drop from 1.5625 to 0.78125 ZEC per 75-second block; NU7 shortens blocks to 25 seconds and scales per-block amounts down, but is designed to keep the halving date. Bitcoin's next halving is also expected in 2028.